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Submission #1017573

# Submission time Handle Problem Language Result Execution time Memory
1017573 2024-07-09T08:55:45 Z vjudge1 Feast (NOI19_feast) C++17
100 / 100
 131 ms 12152 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int inf=1e18;
const int maxn=3e5+5;
int n,k;
int a[maxn];
pair<int,int> alien(int lambda){
    pair<int,int> dp[n+5][2]={};
    dp[0][1].first=-inf;
    for(int i=1;i<=n;i++){
        dp[i][0]=max(dp[i-1][0],dp[i-1][1]);
        pair<int,int> p1={dp[i-1][0].first+a[i]-lambda,dp[i-1][0].second+1};
        pair<int,int> p2={dp[i-1][1].first+a[i],dp[i-1][1].second};
        dp[i][1]=max(p1,p2);
    }
    return max(dp[n][1],dp[n][0]);
}
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>k;
    for(int i=1;i<=n;i++) cin>>a[i];
    int l=0,r=inf;
    while(l<r){
        int lambda=(l+r+1)>>1;
        pair<int,int> tmp=alien(lambda);
        if(tmp.second>=k) l=lambda;
        else r=lambda-1;
    }
    cout<<alien(l).first+k*l;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 11612 KB Output is correct
2 Correct 68 ms 11868 KB Output is correct
3 Correct 69 ms 12124 KB Output is correct
4 Correct 68 ms 11856 KB Output is correct
5 Correct 68 ms 11856 KB Output is correct
6 Correct 67 ms 11600 KB Output is correct
7 Correct 67 ms 11608 KB Output is correct
8 Correct 67 ms 11868 KB Output is correct
9 Correct 67 ms 11612 KB Output is correct
10 Correct 68 ms 11864 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 11856 KB Output is correct
2 Correct 69 ms 12152 KB Output is correct
3 Correct 61 ms 11864 KB Output is correct
4 Correct 61 ms 11868 KB Output is correct
5 Correct 67 ms 11600 KB Output is correct
6 Correct 60 ms 11864 KB Output is correct
7 Correct 62 ms 12120 KB Output is correct
8 Correct 80 ms 11852 KB Output is correct
9 Correct 67 ms 11608 KB Output is correct
10 Correct 62 ms 11868 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 11832 KB Output is correct
2 Correct 93 ms 11812 KB Output is correct
3 Correct 94 ms 11868 KB Output is correct
4 Correct 94 ms 11864 KB Output is correct
5 Correct 91 ms 11860 KB Output is correct
6 Correct 94 ms 11868 KB Output is correct
7 Correct 93 ms 12124 KB Output is correct
8 Correct 97 ms 12004 KB Output is correct
9 Correct 94 ms 12120 KB Output is correct
10 Correct 102 ms 11976 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 392 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 392 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 11612 KB Output is correct
2 Correct 68 ms 11868 KB Output is correct
3 Correct 69 ms 12124 KB Output is correct
4 Correct 68 ms 11856 KB Output is correct
5 Correct 68 ms 11856 KB Output is correct
6 Correct 67 ms 11600 KB Output is correct
7 Correct 67 ms 11608 KB Output is correct
8 Correct 67 ms 11868 KB Output is correct
9 Correct 67 ms 11612 KB Output is correct
10 Correct 68 ms 11864 KB Output is correct
11 Correct 81 ms 11856 KB Output is correct
12 Correct 69 ms 12152 KB Output is correct
13 Correct 61 ms 11864 KB Output is correct
14 Correct 61 ms 11868 KB Output is correct
15 Correct 67 ms 11600 KB Output is correct
16 Correct 60 ms 11864 KB Output is correct
17 Correct 62 ms 12120 KB Output is correct
18 Correct 80 ms 11852 KB Output is correct
19 Correct 67 ms 11608 KB Output is correct
20 Correct 62 ms 11868 KB Output is correct
21 Correct 93 ms 11832 KB Output is correct
22 Correct 93 ms 11812 KB Output is correct
23 Correct 94 ms 11868 KB Output is correct
24 Correct 94 ms 11864 KB Output is correct
25 Correct 91 ms 11860 KB Output is correct
26 Correct 94 ms 11868 KB Output is correct
27 Correct 93 ms 12124 KB Output is correct
28 Correct 97 ms 12004 KB Output is correct
29 Correct 94 ms 12120 KB Output is correct
30 Correct 102 ms 11976 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 392 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 1 ms 344 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 122 ms 11808 KB Output is correct
62 Correct 123 ms 12120 KB Output is correct
63 Correct 128 ms 11844 KB Output is correct
64 Correct 125 ms 11868 KB Output is correct
65 Correct 127 ms 11856 KB Output is correct
66 Correct 130 ms 11864 KB Output is correct
67 Correct 131 ms 11856 KB Output is correct
68 Correct 96 ms 11856 KB Output is correct
69 Correct 92 ms 11868 KB Output is correct
70 Correct 91 ms 11804 KB Output is correct